Sprint 76 performed the first real Butkhuzi code-boundary hardening pass.

The goal was not extraction yet. The goal was to reduce dependence on mixed svc-tenders surfaces where ownership was already clear.

What validation moved

Moved out of the mixed service-wide validator:

• butkhuziComponentSchema
• butkhuziReferenceMetaSchema
• upsertButkhuziNormSchema
• rebuildButkhuziChunksSchema

New Butkhuzi-owned validation module:

• services/svc-tenders/src/butkhuzi/validation.ts

Updated route dependency:

• services/svc-tenders/src/routes/registerButkhuziRoutes.ts now imports Butkhuzi validation from the local domain module rather than services/svc-tenders/src/validation.ts

Result:

• Butkhuzi validation no longer primarily lives in the mixed service-wide validation file
• route behavior stayed the same
• payload validation behavior stayed the same
• error shape stayed the same

What contracts and types were hardened

Sprint 75 already moved Butkhuzi contracts into:

• services/svc-tenders/src/butkhuzi/contracts.ts

Sprint 76 preserved and used that harder boundary:

• services/svc-tenders/src/butkhuzi/repository.ts continues to depend on local Butkhuzi contracts
• services/svc-tenders/src/routes/registerButkhuziRoutes.ts continues to depend on local Butkhuzi contracts
• services/svc-tenders/src/repository.ts now remains a compatibility re-export/delegation surface rather than the primary owner of Butkhuzi shapes

What mixed dependencies were reduced

Reduced in Sprint 76:

• direct Butkhuzi route dependence on mixed services/svc-tenders/src/validation.ts

Still mixed after Sprint 76:

• root repository compatibility delegation in services/svc-tenders/src/repository.ts
• shared shell auth/parser helpers used to build services/svc-tenders/src/routes/support/butkhuziRouteSupport.ts
• duplicated client-side Butkhuzi types in apps/web/src/portal/api.ts
• migration ownership in services/svc-tenders/migrations

What still remains shared

Still shared on purpose:

• gateway route family in services/api/src/routes/butkhuzi.ts
• gateway auth enforcement
• service-shell auth ingress and principal resolution through /auth/me
• parser helpers adapted through services/svc-tenders/src/routes/support/butkhuziRouteSupport.ts

What still blocks runtime/bootstrap prep

Main remaining blockers:

1. Root repository compatibility delegation still exists in services/svc-tenders/src/repository.ts
2. Butkhuzi migration ownership is still in svc-tenders
3. Portal client types still duplicate Butkhuzi contracts in apps/web/src/portal/api.ts
4. Shared-shell auth/parser dependencies are still adapted from the svc-tenders host shell

Takeaway

Sprint 76 did the first low-risk Butkhuzi boundary cleanup that directly helps extraction:

• contracts are domain-owned
• validation is now domain-owned
• route behavior is unchanged
• shared-shell residue is smaller and easier to describe honestly